US3964632A - Closure with a slotted pull tab - Google Patents

Closure with a slotted pull tab Download PDF

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Publication number
US3964632A
US3964632A US05/506,064 US50606474A US3964632A US 3964632 A US3964632 A US 3964632A US 50606474 A US50606474 A US 50606474A US 3964632 A US3964632 A US 3964632A
Authority
US
United States
Prior art keywords
tab
end panel
opening position
opening
flap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/506,064
Other languages
English (en)
Inventor
John S. Bozek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Can Co Inc
Original Assignee
Continental Can Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
Priority to US05/506,064 priority Critical patent/US3964632A/en
Priority to CA220,154A priority patent/CA1022861A/en
Priority to FR7519524A priority patent/FR2284530A1/fr
Application granted granted Critical
Publication of US3964632A publication Critical patent/US3964632A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab

Definitions

  • FIG. 1 is a perspective view of the upper portion of a container having in association therewith a closure device representative of the present invention, illustrating the tab in the secured position.
  • FIG. 2 is a view similar to FIG. 1 wherein the tab has been rotated to the unsecured position.
  • FIG. 3 is a fragmentary sectional view taken generally along line 3--3 of FIG. 1.
  • the security closure of this invention for a container includes an end panel 4 with integral rivets 1 and 2, said rivets 1 and 2 being located on a diameter of said end panel 4 (although they could also be arranged on a chord) rivet 1 being located nearer the periphery of said end panel then rivet 2, a tab 3 rotatably attached to said end panel 4 by said rivet 1, a slot 5 flanked by ribs or bars 10, formed in said tab 3, said slot 5 being substantially perpendicular to the end panel diameter locating said rivets 1 and 2 and of width less than the diameter of the head of said rivet 2, said slot being enlarged at its midpoint to form a circular opening 6, having a diameter greater than the diameter of said rivet 2, a piercing or opening member 7 integrally formed on said tab 3 and a score 8 formed in said end panel 4 and therein defining an opening flap 9.
  • opening is accomplished by vertically displacing the tab 3, thereby pivoting said tab 3 about said rivet 1 and imposing a downward force on said piercing member 7, said force resulting in the breaking of said end panel 4 along said score 8 beneath said piercing member 7.
  • Continued upward displacement of said tab 3 results in controlled tearing of said end panel 4 along said score 8, the opening flap 9 defined by said score 8 being bent down and away from said end panel 4, thereby establishing an opening said end panel 4. Opening a container in this manner is well within the capability of a small child.
  • a securing rivet 2 prevents the lifting of the tab 3.
  • the tab 3 To open the safety closure, the tab 3 must first be rotated to align said securing rivet 2 with the circular opening 6 in said tab 3 (FIG. 2). Rotation of said tab 3 from the closed or secured position shown in FIG. 1 to the released or opening position shown in FIG. 2 is restrained by the parallel ribs 10 which form biasing means and must be deflected laterally to temporarily assume an arcuate contour concentric with the pivot arc of said tab 3 about said rivet 1. Rotation of said tab 3 requires a positive effort to effect the necessary deflection of said bars 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
US05/506,064 1974-09-16 1974-09-16 Closure with a slotted pull tab Expired - Lifetime US3964632A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US05/506,064 US3964632A (en) 1974-09-16 1974-09-16 Closure with a slotted pull tab
CA220,154A CA1022861A (en) 1974-09-16 1975-02-14 Closure with a slotted pull tab
FR7519524A FR2284530A1 (fr) 1974-09-16 1975-06-23 Fermeture de securite pour recipients contenant notamment des produits chimiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/506,064 US3964632A (en) 1974-09-16 1974-09-16 Closure with a slotted pull tab

Publications (1)

Publication Number Publication Date
US3964632A true US3964632A (en) 1976-06-22

Family

ID=24013021

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/506,064 Expired - Lifetime US3964632A (en) 1974-09-16 1974-09-16 Closure with a slotted pull tab

Country Status (3)

Country Link
US (1) US3964632A (enExample)
CA (1) CA1022861A (enExample)
FR (1) FR2284530A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030270A1 (en) * 1995-03-30 1996-10-03 Glud & Marstrand A/S A method of seaming a circular cover panel onto the body of a can
USD731887S1 (en) 2013-03-14 2015-06-16 Crown Packaging Technology, Inc. Vented beverage can end
US9162795B2 (en) 2010-04-28 2015-10-20 Crown Packaging Technology, Inc. Beverage container lid with mouth opening and separate push in vent
US9403628B2 (en) 2013-03-14 2016-08-02 Crown Packaging Technology, Inc. Vented beverage can and can end
US10246229B2 (en) 2013-03-14 2019-04-02 Crown Packaging Technology, Inc. Vented beverage can and can end

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749275A (en) * 1971-12-27 1973-07-31 Aluminum Co Of America Lock-down for a pull tab on a container wall
US3780902A (en) * 1972-04-17 1973-12-25 American Can Co Container end closure
US3795340A (en) * 1972-08-04 1974-03-05 Continental Can Co Tab mounting arrangement for easy opening can end

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749275A (en) * 1971-12-27 1973-07-31 Aluminum Co Of America Lock-down for a pull tab on a container wall
US3780902A (en) * 1972-04-17 1973-12-25 American Can Co Container end closure
US3795340A (en) * 1972-08-04 1974-03-05 Continental Can Co Tab mounting arrangement for easy opening can end

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030270A1 (en) * 1995-03-30 1996-10-03 Glud & Marstrand A/S A method of seaming a circular cover panel onto the body of a can
US5879120A (en) * 1995-03-30 1999-03-09 Glud & Marstrand A/S Method of seaming a circular cover panel onto the body of a can
US9162795B2 (en) 2010-04-28 2015-10-20 Crown Packaging Technology, Inc. Beverage container lid with mouth opening and separate push in vent
USD731887S1 (en) 2013-03-14 2015-06-16 Crown Packaging Technology, Inc. Vented beverage can end
US9403628B2 (en) 2013-03-14 2016-08-02 Crown Packaging Technology, Inc. Vented beverage can and can end
US10246229B2 (en) 2013-03-14 2019-04-02 Crown Packaging Technology, Inc. Vented beverage can and can end

Also Published As

Publication number Publication date
CA1022861A (en) 1977-12-20
FR2284530A1 (fr) 1976-04-09
FR2284530B1 (enExample) 1981-09-18

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